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3 Operation
Overview
This chapter provides instructions for operating the DeskTop T1 DSU.
You can control and monitor DSU functions in two ways: by means of
the switches and LED indicators on the front panel, and by means of a
VT100-compatible terminal connected to the back panel Console port.
The front panel provides a group of monitoring functions through its
indicators and enables you to invoke a subset of the DSU test functions
through its four switches.
The terminal interface provided by the Console port supports a broader
range of functions than does the front panel. Through the terminal
interface you can alter the configuration of the DSU, invoke the full
range of its diagnostic test functions, view the current status of DTE
interface signals and unit alarm conditions, and display information on
the unit.
This chapter describes the use of front panel switches and the terminal
interface for accessing the DSU diagnostic functions. Chapter 4, Tests,
describes in detail the actual test procedures that you can perform by
those means.
Controls and Indicators
Figure 3-1 illustrates the DeskTop T1 DSU front panel and explains
the function of each control and indicator.
The four switches on the front panel are momentary action
pushbuttons. One push on switch initiates its function, a second push
terminates the function.
GDC 048R154-000
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